| 摘要 |
A method of providing normal security services and high security services with a single operating system in a computing system is disclosed. A secure thread is only accessible while the computing system is in a high security environment, and relates to one of the high security services. A pseudo normal thread is to be executed while the computing system in a normal security environment, and it works as a temporary of the secure thread, and is forwarded to a thread ordering service to gain access to resources of the computing system. When the pseudo normal thread gains access to the computing system resources, the computing system is changed to the high security environment to execute the secure thread.
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